Create custom columns.

Google. (n.d.). Create custom columns. Google Ads Help. https://support.google.com/google-ads/answer/11305866?hl=en

This technical support document serves as a foundational guide for advertisers refining their data reporting within the Google Ads platform. It explains the process of building custom columns to segment data based on specific business metrics not available in standard views. By utilizing formulas, users gain a granular understanding of campaign performance, such as ROAS variations. The source is essential for practitioners performing deep-dive analysis tailored to organization goals.